We have a SMax 2.0 tdci. It’s tolerably nice to drive, has good accommodation in all 7 seats and has never let us down and doesn’t cost too much to run afaik. A Galaxy might offer a bit more luggage room.
The best people carrier we had was a 3L V6 auto Chrysler Grand Voyager, it was absolutely brilliant, had an awesome spec, huge, comfy heated seats, 2 DVD players with 2 screens, an epic sound system that would shake the car (all 2 tons of it) without distorting. If all the seats were folded into the floor, you could probably have had a mini rave in there.
It was effortless, if uninvolving, to drive and a very nice place to be.
The only fly in the ointment was 20s MPG. To this day I wish we’d LPG’d and kept it, because it was epic.